using System;
using System.Collections.Generic;
using ServiceStack.Redis.Generic;

namespace ServiceStack.Redis;

/// <summary>
/// Useful wrapper IRedisClientsManager to cut down the boiler plate of most IRedisClient access
/// </summary>
public static partial class RedisClientsManagerExtensions
{
	/// <summary>
	/// Creates a PubSubServer that uses a background thread to listen and process for
	/// Redis Pub/Sub messages published to the specified channel. 
	/// Use optional callbacks to listen for message, error and life-cycle events.
	/// Callbacks can be assigned later, then call Start() for PubSubServer to start listening for messages
	/// </summary>
	public static IRedisPubSubServer CreatePubSubServer(this IRedisClientsManager redisManager, 
		string channel,
		Action<string, string> onMessage = null,
		Action<Exception> onError = null,
		Action onInit = null,
		Action onStart = null,
		Action onStop = null)
	{
		return new RedisPubSubServer(redisManager, channel)
		{
			OnMessage = onMessage,
			OnError = onError,
			OnInit = onInit,
			OnStart = onStart,
			OnStop = onStop,
		};
	}

	public static void Exec(this IRedisClientsManager redisManager, Action<IRedisClient> lambda)
	{
		using var redis = redisManager.GetClient();
		lambda(redis);
	}

	public static string Exec(this IRedisClientsManager redisManager, Func<IRedisClient, string> lambda)
	{
		using var redis = redisManager.GetClient();
		return lambda(redis);
	}

	public static long Exec(this IRedisClientsManager redisManager, Func<IRedisClient, long> lambda)
	{
		using var redis = redisManager.GetClient();
		return lambda(redis);
	}

	public static int Exec(this IRedisClientsManager redisManager, Func<IRedisClient, int> lambda)
	{
		using var redis = redisManager.GetClient();
		return lambda(redis);
	}

	public static double Exec(this IRedisClientsManager redisManager, Func<IRedisClient, double> lambda)
	{
		using var redis = redisManager.GetClient();
		return lambda(redis);
	}

	public static bool Exec(this IRedisClientsManager redisManager, Func<IRedisClient, bool> lambda)
	{
		using var redis = redisManager.GetClient();
		return lambda(redis);
	}

	public static void ExecTrans(this IRedisClientsManager redisManager, Action<IRedisTransaction> lambda)
	{
		using var redis = redisManager.GetClient();
		using var trans = redis.CreateTransaction();
		lambda(trans);

		trans.Commit();
	}

	public static void ExecAs<T>(this IRedisClientsManager redisManager, Action<IRedisTypedClient<T>> lambda)
	{
		using var redis = redisManager.GetClient();
		lambda(redis.As<T>());
	}

	public static T ExecAs<T>(this IRedisClientsManager redisManager, Func<IRedisTypedClient<T>, T> lambda)
	{
		using var redis = redisManager.GetClient();
		return lambda(redis.As<T>());
	}

	public static IList<T> ExecAs<T>(this IRedisClientsManager redisManager, Func<IRedisTypedClient<T>, IList<T>> lambda)
	{
		using var redis = redisManager.GetClient();
		return lambda(redis.As<T>());
	}

	public static List<T> ExecAs<T>(this IRedisClientsManager redisManager, Func<IRedisTypedClient<T>, List<T>> lambda)
	{
		using var redis = redisManager.GetClient();
		return lambda(redis.As<T>());
	}
}